Windtech Coral

The Windtech Coral is a Spanish single-place paraglider that was designed and produced by Windtech Parapentes of Gijón. It is now out of production.[1]

Coral
Role Paraglider
National origin Spain
Manufacturer Windtech Parapentes
Status Production completed
Produced mid-2000s
Unit cost
€2,159 (Coral 29, 2004)

Design and development

The aircraft was designed as a beginner glider for school flight training use. The models are each named for their approximate wing area in square metres.[1]

The design features pitch control stability to simplify beginner ground handling. Also the cells decrease in width towards the wing tips to improve turn co-ordination.[2]

The glider wing is made from Porcher Marine Skytex 44 g/m2 nylon fabric. The rib reinforcements are 310 g/m2 Dacron, with the trailing edge reinforcement fabricated of 175 g/m2 polyester. The lines are all sheathed Kevlar of 1.1 and 1.7 mm in diameter. The risers are made from 25 mm wide polyester strapping.[3]

Variants
Coral 27
Small-sized model for lighter pilots. Its 11.14 m (36.5 ft) span wing has a wing area of 27.54 m2 (296.4 sq ft), 29 cells and the aspect ratio is 4.5:1. The take-off weight range is 60 to 80 kg (132 to 176 lb). The glider model is Deutscher Hängegleiterverband e.V. (DHV) 1 certified.[1]
Coral 29
Mid-sized model for medium-weight pilots. Its 11.54 m (37.9 ft) span wing has a wing area of 29.56 m2 (318.2 sq ft), 29 cells and the aspect ratio is 4.5:1. The take-off weight range is 80 to 100 kg (176 to 220 lb). The glider model is DHV 1 certified.[1]
Coral 32
Large-sized model for heavier pilots. Its 12.11 m (39.7 ft) span wing has a wing area of 32.62 m2 (351.1 sq ft), 29 cells and the aspect ratio is 4.5:1. The take-off weight range is 90 to 115 kg (198 to 254 lb). The glider model is DHV 1 certified.[1]

Specifications (Coral 29)

Data from Bertrand[1] and manufacturer[3]

General characteristics

  • Crew: one
  • Wingspan: 11.54 m (37 ft 10 in)
  • Wing area: 29.56 m2 (318.2 sq ft)
  • Aspect ratio: 4.5:1
  • Empty weight: 5.2 kg (11 lb)
  • Gross weight: 100 kg (220 lb)

Performance

  • Maximum speed: 45 km/h (28 mph, 24 kn)
  • Cruise speed: 36 km/h (22 mph, 19 kn)
  • Stall speed: 20 km/h (12 mph, 11 kn)

References
  1. Bertrand, Noel; Rene Coulon; et al: World Directory of Leisure Aviation 2003-04, page 36. Pagefast Ltd, Lancaster OK, 2003. ISSN 1368-485X
  2. Windtech Parapentes (2016). "Coral". Retrieved 24 November 2016.
  3. Windtech Parapentes (2016). "Coral technical data". Retrieved 24 November 2016.
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